4427 locations in the last 30 days (4591 reports) · Last sighting 14 hours ago
What am I looking at?
Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.
Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.
Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.
Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?
Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.
Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.
Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.
Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.
53,243 reports match your filters.
| Date | Address | Neighborhood | Ward | Status | Response time | Reported via | Source |
|---|---|---|---|---|---|---|---|
| 8/7/2025 | 1252 E 95TH PL | Pullman | 8 | Completed | 6 days | Phone Call | City 311 |
| 8/7/2025 | 9928 S EMERALD AVE | Washington Heights | 21 | Completed | 13 days | Phone Call | City 311 |
| 8/7/2025 | 4516 N FRANCISCO AVE | Albany Park | 33 | Completed | 14 days | Alderman's Office | City 311 |
| 8/7/2025 | 5040 W SUPERIOR ST | Austin | 37 | Completed | 12 days | Phone Call | City 311 |
| 8/7/2025 | 5129 S MERRIMAC AVE | Garfield Ridge | 23 | Completed | 15 days | Mobile Device | City 311 |
| 8/7/2025 | 5359 S NASHVILLE AVE | Garfield Ridge | 23 | Completed | 13 days | Mobile Device | City 311 |
| 8/7/2025 | 5600 S ELIZABETH ST | West Englewood | 16 | Completed | 6 days | Phone Call | City 311 |
| 8/7/2025 | 3512 N LINCOLN AVE | Lake View | 47 | Completed | 15 days | Phone Call | City 311 |
| 8/7/2025 | 2724 N MONTICELLO AVE | Logan Square | 35 | Completed | 13 days | Phone Call | City 311 |
| 8/7/2025 | 2111 N MONITOR AVE | Belmont Cragin | 36 | Completed | 13 days | Phone Call | City 311 |
| 8/7/2025 | 4348 W MONROE ST | West Garfield Park | 28 | Completed | 6 days | Phone Call | City 311 |
| 8/7/2025 | 9646 S ESCANABA AVE | South Deering | 10 | Completed | 6 days | Phone Call | City 311 |
| 8/7/2025 | 3010 W WILSON AVE | Albany Park | 33 | Completed | 14 days | Alderman's Office | City 311 |
| 8/7/2025 | 1042 W MARQUETTE RD | Englewood | 16 | Completed | 6 days | Internet | City 311 |
| 8/7/2025 | 10713 S GLENROY AVE | Morgan Park | 21 | Completed | 13 days | Phone Call | City 311 |
| 8/7/2025 | 6720 N SHERIDAN RD | Rogers Park | 49 | Completed | 8 days | Internet | City 311 |
| 8/7/2025 | 3766 W 114TH PL | Mount Greenwood | 19 | Completed | 12 days | Alderman's Office | City 311 |
| 8/7/2025 | 9526 S BENSLEY AVE | South Deering | 7 | Completed | 6 days | Internet | City 311 |
| 8/7/2025 | 5625 N ST LOUIS AVE | North Park | 39 | Completed | 12 days | Alderman's Office | City 311 |
| 8/7/2025 | 11154 S VERNON AVE | Roseland | 9 | Completed | 13 days | Internet | City 311 |
| 8/7/2025 | 5744 S FRANCISCO AVE | Gage Park | 15 | Completed | 6 days | Alderman's Office | City 311 |
| 8/7/2025 | 10445 S STATE ST | Roseland | 9 | Completed | 12 days | Internet | City 311 |
| 8/7/2025 | 10850 S EGGLESTON AVE | Roseland | 21 | Completed | 12 days | Phone Call | City 311 |
| 8/7/2025 | 4931 W KAMERLING AVE | Austin | 37 | Completed | 12 days | Internet | City 311 |
| 8/7/2025 | 3509 W 78TH PL | Ashburn | 18 | Completed | 7 days | Phone Call | City 311 |